<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>study</title>
</head>
<body>
<h1>Hello Servlet</h1>
<form method="post" action="HelloServlet">
    ISDN:<input type="text" name="isdn"><br/>
    Name:<input type="text" name="name"><br/>
    Author:<input type="text" name="author"><br/>
    Price:<input type="text" name="price"><br/>
    <input type="submit">
</form>

</body>
</html>